<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="UTF-8" />
		<meta http-equiv="X-UA-Compatible" content="IE=edge" />
		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
		<title>Document</title>
		<style>
			@media (min-width: 320px) {
				html {
					font-size: 20px;
				}
			}

			@media (min-width: 375px) {
				html {
					font-size: 28px;
				}
			}

			@media (min-width: 480px) {
				html {
					font-size: 32px;
				}
			}

			.box {
				width: 2rem;
				height: 2rem;
				background-color: orange;
			}
		</style>
	</head>
	<body>
		<div class="box"></div>
	</body>
</html>
